地质与勘探2017，Vol.53Issue(3)：609-614,6.
煤矿瓦斯中H2S气体的吸附特性及其对治理的影响
Adsorption Characteristics of H2S in Coal Mine Gas and Their Effect on H2S Control in Coal Mines
摘要
Abstract
This study was based on isothermal experiments on adsorption of H2S,CH4 and N2 under a balanced water condition for gas coal and lean coal in Xinjiang and Shanxi and simulations on the Langmuir and D-A models.The purpose was to reveal adsorption characteristics of H2 S in mine gas and their influence factors as well as the relationship with H2S in coal mines.The results show that different from CH4 and N2 adsorption characteristics which are dominated by microporous adsorption,H2 S micro-pore adsorption quantity accounts for 36.26％ ～ 57.21％ of the maximum Langmuir amount (VL),with 45.99％ on average.H2S adsorption was controlled by molecular properties to a large extent,particularly molecular diameter which decides that the micropore adsorption rate(Vo/VL) of H2S is much less than that of CH4 and N2.Based on the adsorption characteristics of H2S in micro-pores,this study suggested that H2S control in coal mines should start from H2S molecular itself and combine with geological conditions of coal seams.关键词
煤矿瓦斯/H2S/吸附解吸/治理/新疆/山西Key words
coalbed methane/H2S/adsorption-desorption/control/Xinjiang/Shanxi分类
天文与地球科学引用本文复制引用
薛景战,傅雪海,吴家浩,丁永明..煤矿瓦斯中H2S气体的吸附特性及其对治理的影响[J].地质与勘探,2017,53(3):609-614,6.基金项目
国家自然科学基金项目“煤矿瓦斯中H2S异常区的形成机制研究”(编号:41272177)资助. （编号:41272177）
